Home / 786,988.80-1,181,671.20-628,747.20

Finding the Fourth Proportional to 786,988.80, 1,181,671.20 and 628,747.20

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Solution

The fourth proportional to 786,988.80, 1,181,671.20 and 628,747.20 is: 944,069.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,988.80 : 1,181,671.20 = 628,747.20 : x
  2. Step 2: Convert to fraction form
    786,988.80/1,181,671.20 = 628,747.20/x
  3. Step 3: Cross multiply
    786,988.80x = 1,181,671.20 × 628,747.20
  4. Step 4: Simplify right side
    786,988.80x = 742,972,458,320.64
  5. Step 5: Solve for x
    x = 742,972,458,320.64/786,988.80
  6. Step 6: Final answer
    x = 944,069.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.